diff --git a/jest.setup.js b/jest.setup.js
new file mode 100644
index 000000000..daa814da5
--- /dev/null
+++ b/jest.setup.js
@@ -0,0 +1,2 @@
+global.TextEncoder = require('util').TextEncoder;
+global.TextDecoder = require('util').TextDecoder;
diff --git a/package.json b/package.json
index e5e192441..0eeea9133 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,8 @@
       }
     },
     "setupFilesAfterEnv": [
-      "jest-expect-message"
+      "jest-expect-message",
+      "<rootDir>/jest.setup.js"
     ]
   },
   "dependencies": {
diff --git a/server/admin.api.spec.js b/server/admin.api.spec.js
index e156c6c8f..3af3d5f06 100644
--- a/server/admin.api.spec.js
+++ b/server/admin.api.spec.js
@@ -1,3 +1,4 @@
+/** @jest-environment node */
 /*eslint max-lines: ["warn", {"max": 1000, "skipBlankLines": true, "skipComments": true}]*/
 import supertest from 'supertest';
 import HBApp     from './app.js';
diff --git a/server/forcessl.mw.spec.js b/server/forcessl.mw.spec.js
index e18821e6d..8c83b799d 100644
--- a/server/forcessl.mw.spec.js
+++ b/server/forcessl.mw.spec.js
@@ -1,3 +1,4 @@
+/** @jest-environment node */
 import forceSSL from './forcessl.mw';
 
 describe('Tests for ForceSSL middleware', ()=>{
diff --git a/server/homebrew.api.spec.js b/server/homebrew.api.spec.js
index 0a6d1d452..973c57e8a 100644
--- a/server/homebrew.api.spec.js
+++ b/server/homebrew.api.spec.js
@@ -1,3 +1,4 @@
+/** @jest-environment node */
 /* eslint-disable max-lines */
 
 import { splitTextStyleAndMetadata } from '../shared/helpers.js';
diff --git a/server/token.spec.js b/server/token.spec.js
index 24ebb7f7c..209e80ac9 100644
--- a/server/token.spec.js
+++ b/server/token.spec.js
@@ -1,3 +1,4 @@
+/** @jest-environment node */
 import { expect, jest } from '@jest/globals';
 import config from './config.js';